Eyeglass-stud



Nu. 608,2l4. Patented Aug. 2, 1898.

J. H. NA

EYEGLASS (Application filed Sept. 4, 1896.)

(No Model.)

w/nvsssm: I m/Vmmn: I WA/WWW Arm/mus UNTTED STATES PATENT OFFICE.

JOSEPH HERBERT NASON, OF SOMERVILLE, MASSACHUSETTS.

EYEG LASS- STU D.

SPECIFICATION forming part of Letters Patent No. 608,214, dated August2, 1898.

Application filed September 4, 1896. Serial No. 604,874. (No model.)

To aZZ whom it may concern.-

Be it known that I,JosEPH HERBERT NAsoN, of Somerville, in the county ofMiddlesex, in the State of Massachusetts, have invented an ImprovedEyeglass-Stud, of which the following is a specification, referencebeing had to the accompanying drawings, in which Figure 1 is an end viewof an ordinary stud. Fig. 2 is an end view of an improved stud. Fig. 3is a front and edge view of spring. Fig. 4 shows the spring and studconnected. Fig. 5 shows an eyeglass with stud in use. Figs. 1, 2, 3, and4 are enlarged for clearness.

As heretofore made, the stud of the eye glass-frame, to which the glasshas been directly connected, has been formed before the joining of theglass and the stud together, as shown in Fig. 1-that is to say, itconsisted of four arms radiating from a common center, this center beingfast to a shank a, the other end of which was secured to the ends of thespring D of the eyeglass. The glass was secured to the stud by bendingthe ends of the arms which were crosswise of the length of the springtoward each other to embrace one end of the glass and securing a rivetthrough the ends of the arms and the glass. The other two arms, whichwere parallel with the length of the spring, were curved around the edgeof the glass to form a base and prevent the glass from turning upon therivet. It was necessary, however, as the arms had to be bent, that theyshould be of soft metal, and as a consequence of this fact if the glasswere moved around upon its rivet, forcing back the restraining-arm, asoften happened in cleaning the glass and in other ways, the glass wasleft loose upon the rivet. My invention is intended to obviate thisdifficulty.

Fig. 2 shows an end View of a stud made according to my invention. Thearms a a of the stud have holes at their outer ends for a rivet toconnect to the glass. Fig. 3 shows a front and edge view of a spring I).The arms a a are bent together to receive the glass, as heretofore, andat the same time the spring I) is placed between the arms, which whenbent forward fit into the recess d d in the spring and firmly hold thespring, as shown in Fig. 4; Such a curve is given to spring I) in theprocess of manufacture as to cause its ends to come in contact with theglass before the hole in the glass registers with the holes in the endsof arms a a to receive the rivet. The glass being forced to placeagainst the resistance of spring 1), spring I) maintains a constantpressure upon the edge of the glass,

cooperating with the rivet to hold it firmly,

and yielding and returning the glass to its normal position if the glassis revolved upon its rivet by any means. In this way the glass is alwaysheld firmly and in proper position and cannot wear loose.

WVhat I claim is The improved eyeglass-stud above described comprisingthe shank ct,-arms'a a attached to shank a and spring I) held betweenarms a a and between the shank a, and

the lens of the eyeglass substantially as shown

